Synergy of inelastic and elastic energy loss: Temperature effects and electronic stopping power dependence

SCRIPTA MATERIALIA

卷:110

Article

Zarkadoula, Eva¹  Xue, Haizhou²  Zhang, Yanwen^1,2  Weber, William J.^1,2 

[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[2] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

关键词: Radiation effects;    Molecular dynamics;    Ceramics;    Perovskite;    Defects;   

DOI  :  10.1016/j.scriptamat.2015.05.044

来源: Elsevier

【 摘 要 】

A combination of an inelastic thermal spike model suitable for insulators and molecular dynamics simulations is used to study the effects of temperature and electronic energy loss on ion track formation, size and morphology in SrTiO3 systems with pre-existing disorder. We find temperature dependence of the ion track size. We also find a threshold in the electronic energy loss for a given pre-existing defect concentration, which indicates a threshold in the synergy between the inelastic and elastic energy loss. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free